Circuit Description

DTC will run when Driver Door Module (DDM) and related passenger door modules (PDM, LRDM, RRDM) are powered and neither DTC B1327 Battery Voltage Low or B1328 Battery Voltage High are set. See appropriate BODY CONTROL MODULES article.

DTC sets when DDM receives a message that a switch is closed for more than 15 seconds from another door module.

If UP switch is closed for more than 15 seconds, both UP and DOWN movement is prohibited. If DOWN switch is closed for more than 15 seconds, all DOWN commands are ignored, but UP commands are enabled.

DTC is cleared when switch message is not received, or ignition switch changes from OFF to RUN position.